Init repo for 2020 WC Election

This change:
- Adds dates of upcoming WC election as agreed upon during TC meeting
  on 09-July-2020, agenda in [0]
- Initializes candidates/2020/WC folder where nominations will be
  submitted. Initialization includes tips and hints for drafting a
  nomination.
- Adds .gitignore file, excluding the .idea/ directory created by
  JetBrains IDEs

[0] https://etherpad.opendev.org/p/airship-tc-meeting-2020-07-09

Change-Id: Iad8c26e82c5245a3b70820f0ce4c62cd4cc7bb96
Signed-off-by: Alexander Hughes <Alexander.Hughes@pm.me>

.gitignore

@@ -0,0 +1,2 @@
+# JetBrains IDEs
+.idea

candidates/2020/WC/placeholder_and_hints.rst

@@ -0,0 +1,18 @@
+If you have never participated in an election and written up a nomination
+before here are a few tips to help you:
+
+* One purpose of the nomination text is to help the community to know you
+  better and understand why you are running for the position
+* Technical background and skills that you feel relevant for the position
+  are good to mention
+* Summarizing your involvement with the project will help to show what areas
+  you are active in and what your experience is with the project and community
+* Listing responsibilities you would take and actions you would drive will
+  help the community to understand how you can fit into the WC group if you
+  get elected
+* There is no perfect nomination, make sure you include all talking points
+  you would be interested to read in others'
+* Don't forget to send the text to the airship-discuss mailing list as well
+* For examples and inspiration you can look into the election candidacy folder
+  of OpenStack: https://opendev.org/openstack/election/src/branch/master/candidates
+

doc/source/upcoming.rst

@@ -17,9 +17,9 @@ Dates
 +-------------+-------------------------+-------------------------+
 | Events      | Start Date              | End Date                |
 +=============+=========================+=========================+
-| Nominations | TBA                     | TBA                     |
+| Nominations | July 20, 2020           | July 26, 2020           |
 +-------------+-------------------------+-------------------------+
-| Election    | TBA                     | TBA                     |
+| Election    | July 27, 2020           | August 02, 2020         |
 +-------------+-------------------------+-------------------------+
 
 Election Officials